Mason County, IL: Current UV Index and Hourly Forecast

As of 9:01 AM CDT on October 9, 2025, all 10 cities in Mason County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Havana, IL with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Mason County, IL is expected to be 4.8 in Havana between 1:00 PM - 2:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Mason County, IL as of 9:01 AM CDT, October 9, 2025

Current UV Index in Cities in Mason County, IL

9:01 AM CDT, October 9, 2025